.nav {
    overflow: hidden;
}
.second_kill {
    position: absolute;
    border-left: 1px solid #c81523;
    margin-left: 190px;
    margin-top: 40px;
    padding: 3px 0 0 14px;
}
.sk_list {
    float: left;
}
.sk_list ul li {
    float: left;
}
.sk_list ul li a {
    display: block;
    font-size: 16px;
    font-weight: 700;
    line-height: 47px;
    padding: 0 30px;
    color: black;
}
.sk_con {
    float: left;
}
.sk_con ul li {
    float: left;
}
.sk_con ul li a {
    display: block;
    font-size: 14px;
    line-height: 49px;
    padding: 0 20px;
}
.sk_con ul li:last-child a::after{
    content: '\e91e';
    font-family: 'icomoon';
}
.sk_bd {
    margin-top: 24px;
}
.sk_bd>ul li {
    float: left;
    width: 290px;
    height: 460px; 
    border: 1px solid transparent;
    margin-right: 13px;
}
.sk_bd>ul li:nth-child(4n) {
    margin-right: 0;
}
.sk_bd>ul li:hover {
    border: 1px solid #e12228;
}
.sk_bd .introduce { 
    font-size: 13px;
    padding: 10px 10px 10px 12px;
}
.current_price,.original_price {
    display: inline-block;
}
.current_price {
    font-size: 22px;
    font-weight: 700;
    color: #e60012; 
    margin-left: 12px;
}
.original_price {
    font-size: 14px;
    color: #b1b1b1;
    text-decoration: line-through;
}
.schedule {
    height: 28px;
    text-align: center;
    line-height: 28px;
}
.bar {
    display: inline-block;
    width: 132px;
    height: 12px;
    background-color: #c81523;
    border: 1px solid #c81523;
    border-radius: 6px;
    margin: -2px 10px;
}
.bar::after {
    content: '';
    float: right;
    width: 20px;
    height: 10px;
    background-color: #fff;
    border-radius: 0 5px 5px 0;
}
.sk_bd .buy {
    width: 290px;
    height: 50px;
    font-size: 20px;
    color: #fff;
    text-align: center;
    line-height: 50px;
    background-color: #c81523;
    margin-left: -1px;
}